An average in-person interview lasts for approximately 30 minutes. Some interviews can end abruptly due to someone calling the interviewer away to manage an unexpected situation. A shorter interview doesn't always reflect on its quality, but it may be worth noticing if other signs are present. You may ask the recruiter if they'd prefer to reschedule the interview to a more suitable time. This can demonstrate your flexibility and willingness to adapt to circumstances. It can also show your consideration for your teammates and their hard work.